Magnetics
Make Possible
Shielded Surface
Mount Inductors
MODEL HM78
Features
Operating Temperature Range -40C to +125C
Temperature Rise, Maximu m 40C
Operating Frequency Up to 3MHz
RoHS Compliant
Specifications @ 25C
DC Rated DC Rated
Inductance Inductance
(2) (2)
Part Number Resistance Current Figure Part Number Resistance Current Figure
(1) (1)
H 20% H 20%
Max. Amps Max. Amps
HM78-10100LF 10 0.08 1.00 1 HM78-30181LF 180 1.45 0.39 2
HM78-10120LF 12 0.09 0.94 1 HM78-30221LF 220 1.65 0.35 2
HM78-10150LF 15 0.12 0.86 1 HM78-30271LF 270 2.31 0.32 2
HM78-10180LF 18 0.13 0.78 1 HM78-30331LF 330 2.62 0.28 2
HM78-10220LF 22 0.15 0.76 1 HM78-30391LF 390 2.94 0.26 2
HM78-10270LF 27 0.21 0.64 1 HM78-30471LF 470 4.18 0.24 2
HM78-10330LF 33 0.25 0.61 1 HM78-30102LF 1000 6.50 0.16 2
HM78-10390LF 39 0.31 0.53 1 HM78-40100LF 10 0.055 2.00 2
HM78-10470LF 47 0.35 0.50 1 HM78-40120LF 12 0.058 1.71 2
HM78-10560LF 56 0.43 0.46 1 HM78-40150LF 15 0.081 1.47 2
HM78-10680LF 68 0.52 0.42 1 HM78-40180LF 18 0.091 1.31 2
HM78-20100LF 10 0.055 1.65 1 HM78-40220LF 22 0.11 1.23 2
HM78-20120LF 12 0.073 1.50 1 HM78-40270LF 27 0.15 1.12 2
HM78-20150LF 15 0.081 1.34 1 HM78-40330LF 33 0.17 1.00 2
HM78-20180LF 18 0.102 1.22 1 HM78-40390LF 39 0.23 0.91 2
HM78-20220LF 22 0.115 1.10 1 HM78-40470LF 47 0.26 0.88 2
HM78-20270LF 27 0.159 1.00 1 HM78-40560LF 56 0.35 0.75 2
HM78-20330LF 33 0.182 0.90 1 HM78-40680LF 68 0.38 0.69 2
HM78-20390LF 39 0.199 0.83 1 HM78-40820LF 82 0.43 0.61 2
HM78-20470LF 47 0.221 0.75 1 HM78-40101LF 100 0.61 0.60 2
HM78-20560LF 56 0.306 0.69 1 HM78-40121LF 120 0.66 0.52 2
HM78-20680LF 68 0.345 0.63 1 HM78-40151LF 150 0.88 0.46 2
HM78-20820LF 82 0.39 0.57 1 HM78-40181LF 180 0.98 0.42 2
HM78-20101LF 100 0.432 0.52 1 HM78-40221LF 220 1.17 0.36 2
HM78-20121LF 120 0.44 0.47 1 HM78-40271LF 270 1.64 0.34 2
HM78-20151LF 150 0.73 0.42 1 HM78-40331LF 330 1.86 0.32 2
HM78-20181LF 180 0.78 0.38 1 HM78-40391LF 390 2.85 0.29 2
HM78-20221LF 220 0.94 0.35 1 HM78-40471LF 470 3.01 0.26 2
HM78-20271LF 270 1.25 0.31 1 HM78-40561LF 560 3.62 0.23 2
HM78-30100LF 10 0.072 1.68 2 HM78-40681LF 680 4.63 0.22 2
HM78-30120LF 12 0.098 1.52 2 HM78-40821LF 820 5.20 0.20 2
HM78-30150LF 15 0.13 1.33 2 HM78-453R9LF 3.9 0.015 6.5 3
HM78-30180LF 18 0.14 1.20 2 HM78-454R7LF 4.7 0.018 5.7 3
HM78-30220LF 22 0.19 1.07 2 HM78-456R8LF 6.8 0.023 4.9 3
HM78-30270LF 27 0.21 0.96 2 HM78-45100LF 10 0.028 4.5 3
HM78-30330LF 33 0.24 0.91 2 HM78-45120LF 12 0.038 4.0 3
HM78-30390LF 39 0.32 0.77 2 HM78-45150LF 15 0.050 3.2 3
HM78-30470LF 47 0.36 0.76 2 HM78-45180LF 18 0.057 3.1 3
HM78-30560LF 56 0.47 0.68 2 HM78-45220LF 22 0.066 2.9 3
HM78-30680LF 68 0.52 0.61 2 HM78-45270LF 27 0.080 2.8 3
HM78-30820LF 82 0.69 0.57 2 HM78-45330LF 33 0.097 2.7 3
HM78-30101LF 100 0.79 0.50 2 HM78-45390LF 39 0.132 2.1 3
HM78-30121LF 120 0.89 0.49 2 HM78-45470LF 47 0.150 1.9 3
HM78-30151LF 150 1.27 0.43 2 HM78-45560LF 56 0.190 1.8 3
General Note
TT Electronics reserves the right to make changes in product specification without notice or liability.
All information is subject to TT Electronics own data and is considered accurate at time of going to print.
www.electrtt onicsmagnecs.cti om
TT Electronics plc
Rev. 01Shielded Surface
Mount Inductors Make Possible
MODEL HM78
Specifications @ 25C (Continued)
DC Rated DC Rated
Inductance Inductance
(2) (2)
Part Number Resistance Current Figure Part Number Resistance Current Figure
(1) (1)
H 20% H 20%
Max. Amps Max. Amps
HM78-45680LF 68 0.220 1.5 3 HM78-50151LF 150 0.23 1.0 3
HM78-45820LF 82 0.260 1.3 3 HM78-50181LF 180 0.29 0.9 3
HM78-45101LF 100 0.308 1.2 3 HM78-50221LF 220 0.40 0.8 3
HM78-45121LF 120 0.380 1.1 3 HM78-50271LF 270 0.46 0.75 3
HM78-45151LF 150 0.530 0.95 3 HM78-50331LF 330 0.51 0.68 3
HM78-45181LF 180 0.620 0.85 3 HM78-50391LF 390 0.69 0.65 3
HM78-45221LF 220 0.700 0.80 3 HM78-50471LF 470 0.77 0.58 3
HM78-45271LF 270 0.876 0.60 3 HM78-50561LF 560 0.86 0.54 3
HM78-45331LF 330 0.990 0.50 3 HM78-50681LF 680 1.20 0.48 3
HM78-501R5LF 1.525% 0.012 13.0 3 HM78-50821LF 820 1.34 0.43 3
HM78-502R2LF 2.225% 0.014 7.0 3 HM78-50102LF 1000 1.53 0.40 3
HM78-503R1LF 3.125% 0.017 6.0 3 HM78-50182LF 1800 3.20 0.30 3
HM78-504R4LF 4.425% 0.020 5.0 3 HM78-601R4LF 1.430% 0.007 12.0 3
HM78-505R2LF 5.225% 0.021 4.4 3 HM78-602R4LF 2.430% 0.012 8.0 3
HM78-507R5LF 7.525% 0.024 4.2 3 HM78-603R9LF 3.930% 0.014 7.5 3
HM78-50100LF 10 0.025 4.0 3 HM78-604R7LF 4.730% 0.016 6.8 3
HM78-50120LF 12 0.027 3.5 3 HM78-605R6LF 5.630% 0.018 6.6 3
HM78-50150LF 15 0.030 3.3 3 HM78-607R6LF 7.630% 0.020 5.9 3
HM78-50180LF 18 0.034 3.0 3 HM78-60100LF 10 0.022 5.4 3
HM78-50220LF 22 0.036 2.8 3 HM78-60120LF 12 0.025 4.9 3
HM78-50270LF 27 0.051 2.3 3 HM78-60150LF 15 0.027 4.5 3
HM78-50330LF 33 0.057 2.1 3 HM78-60180LF 18 0.039 3.9 3
HM78-50390LF 39 0.068 2.0 3 HM78-60220LF 22 0.043 3.6 3
HM78-50470LF 47 0.075 1.8 3 HM78-60270LF 27 0.046 3.4 3
HM78-50560LF 56 0.11 1.7 3 HM78-60330LF 33 0.065 3.0 3
HM78-50680LF 68 0.12 1.5 3 HM78-60390LF 39 0.073 2.75 3
HM78-50820LF 82 0.14 1.4 3 HM78-60470LF 47 0.085 2.5 3
HM78-50101LF 100 0.16 1.5 3 HM78-60221LF 220 0.37 1.2 3
HM78-50121LF 120 0.17 1.1 3
Notes: (1) Inductance is measured at 1.0kHz without DC current.
(2) Rated DC current is the approximate current at which inductance will be decreased by 10% from its initial (zero DC) value or the DC current
at which T = 40C, whichever is lower.
Schematic
Packaging
Embossed Tape and Reel
Reel: Diameter: = 13 (330.2mm)
Standard:
Capacity: Case size 10, 30, 40 = 1,000 Units
Case size 20, 45, 50, 60 = 500 Units
General Note
TT Electronics reserves the right to make changes in product specification without notice or liability.
All information is subject to TT Electronics own data and is considered accurate at time of going to print.
www.electrtt onicsmagnecs.cti om
TT Electronics plc
Rev. 01